Live Demo: jQuery each() Method Iterate Over List Element to Get Class.

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<!doctype html>
<html lang="en">
<head>
<title>jQuery each() Method Iterate Over List Element to Get Class.</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
$(document).ready(function(){ 
    $('.myulbtn').click(function(){
        $("ul li").each(function(index){
            alert($(this).attr('class'));
        });
    });
});
</script>
</head>
<body>
<h2>jQuery each() Method Iterate Over List Element to Get Class.</h2>
<ul>
    <li class="one">1st element.</li>
    <li class="two">2nd element.</li>
    <li class="three">3rd element.</li>
</ul>
<button type="button" class="myulbtn">Click to Iterate</button>
</body>
</html>              
​